Tube cutter



FIG. 1 is a right side view of the tube cutter design shown having blade covers positioned covering cutter blades;

FIG. 2 is a front view of the tube cutter design of FIG. 1;

FIG. 3 is a left side view of the tube cutter design of FIG. 1;

FIG. 4 is a back view of the design of FIG. 1;

FIG. 5 is a top end view of the design of FIG. 1; and,

FIG. 6 is a bottom end view of the design of FIG. 1. 

CLAIM The ornamental design for a tube cutter, as shown and described. 